Emprego da compostagem para destinação final de suínos mortos e restos de parição.

A destinação final de carcaças de suínos. Formulação de uma nova alternativa. Processos em fluxo contínuo. Processos em batelada. Quanto ao volume das carcaças. Quanto à velocidade de decomposição das carcaças. Compostagem: uma solução para destinação de carcaças. Quanto ao grau de tecnologia. Quanto à estrutura física. Quanto às reações que ocorrem na compostagem. Requisitos para a compostagem de carcaças. Dimensionamento da célula de compostagem. Passos para a compostagem de carcaças. Como resolver os problemas mais comuns.bitstream/item/82371/1/CiT26.pd

Technical and economic performance favours fully automated climate control broiler housing.

Abstract: 1. This study compared two broiler housing models with different technologies (conventional versus fully automated climate control) to verify their performance and carcass characteristics at slaughter, as well as the economics of production. 2. A database regarding 20 443 flocks of heavy broilers produced in an integrated operation during the years 2020 and 2021, in eight Brazilian regions was used in the analysis. The dependent variables included feed conversion, average live weight gain, total and partial carcass condemnation and the total mortality. For economic analysis, the production cost of each technology including feed, labour, energy, heating and depreciation was calculated. 3. The technology used in the broiler houses had a significant effect on the technical indicators which were positive for fully automated climate control in most geographical regions. One important exception was the effect on total and partial carcass condemnations, with better results seen for conventional housing. The total cost per ton of broiler meat delivered, deducting condemnation losses, was lower in the automated climate controlled housing compared to conventional housing. 4. In conclusion, there was a reduction in broiler chicken production costs for birds raised in fully automated climate controlled housing, indicating better economic results for this model in Brazil

Fusion activity and inactivation of influenza virus: Kinetics of low pH-induced fusion with cultured cells

The kinetics of fusion of influenza virus (A/PR/8/34) with human promyelocytic leukaemia (HL-60), human T lymphocytic leukaemia (CEM) and murine lymphoma (S49) cells were investigated. Fusion was demonstrated by electron microscopy, and monitored by fluorescence dequenching of octadecylrhodamine incorporated in the virus membrane. Rapid fusion was induced upon mild acidification of the medium. At pH 5, all virus particles were capable of fusing with the cells. The initial rate and the extent of fusion were maximal between pH 4.9 and 5.2 and declined sharply below and above this range. The rate constants of adhesion of influenza virus to cells or erythrocyte ghosts were large, indicating a diffusion-controlled process. The rate constants of fusion of the virus with cells were smaller than those found previously for fusion with various liposomes. Although preincubation of the virus at acidic pH in the absence of target membranes almost completely inactivated the virus in its ability to fuse with erythrocyte ghosts, it reduced the extent of fusion with cultured cells by only 20 to 40%. Kinetic analysis of fusion revealed a mode of inactivation of the virus bound to erythrocyte ghosts or suspension cells, below pH 5.4, different from that of the virus preincubated at low pH without target membranes

Compostagem de suínos mortos e restos de parição.

2. ed

Acompanhamento parasitário de rebanhos suínos no Sistema Intensivo de Suínos Criados ao Ar Livre - SISCAL.

bitstream/CNPSA/15616/1/cot253.pd

Avaliação do comportamento humano nas organizações: uma proposta.

Referencial teórico; Proposta de instrumento de avaliação comportamental; Metodologia para operacionalização.bitstream/CNPTIA/11402/1/doc66.pdfAcesso em 28 maio 2007

Emission intensities by Holstein and Holstein x Jersey crossbreed lactating cows in two Brazilian.

In recent years the concern with methane (CH4) emission by enteric fermentation has become indispensable for dairy production systems. The aim of this study was to evaluate CH4 emissions from pure Holstein (HOL) and 1/2Jersey 1/2HIn recent years the concern with methane (CH4) emission by enteric fermentation has become indispensable for dairy production systems. The aim of this study was to evaluate CH4 emissions from pure Holstein (HOL) and 1/2Jersey1/2Holstein (JH) high producing lactating cows grazing two different forages